A miniature circuit breaker with a combined terminal hole protection cover

Abstract

The utility model discloses a miniature circuit breaker with combined wiring hole protective cover relates to miniature circuit breaker production technical field, and this utility model discloses, including: ware body, wiring slot, the wiring slot is set up at the top of ware body, the top of ware body is connected with the protective device of sliding, and the protective device is sealed to the input end of wiring body through the mode of sliding, through setting up the double cover body of protective device collocation rubber apron, can be tightly sealed wiring slot, both block the invasion of foreign matter terminal area, avoid the trouble caused by foreign matter, and insulate live terminal and external contact, reduce the electric shock hidden danger, and the cover body and ware body adopt sliding connection, and do not need to disassemble to open and close, and the operation is labor saving, and when overhauling, can move single cover body alone, reduce the condition of overall protection failure, and the elastic buckle of cover body side wall can fix cover body position, prevent the displacement in use, and the top anti -skid strip increases operating friction, avoids the purpose of slipping and miscontact when hand operation.

Description

Technical Field

[0001] This utility model relates to the field of miniature circuit breaker manufacturing technology, specifically a miniature circuit breaker with a combined wiring hole protective cover. Background Technology

[0002] Miniature circuit breakers, as core protection devices in low-voltage power distribution systems, are widely used in household distribution boxes, industrial control cabinets, commercial power circuits, and other scenarios. Their core function is to cut off abnormal circuits through overload protection and short-circuit protection mechanisms to avoid damage to electrical appliances or fire risks.

[0003] The protective covers of existing miniature circuit breakers mostly adopt a single integral structure or a flip-top structure. When using a single integral structure, wiring or maintenance requires the protective cover to be fully opened, resulting in all wiring terminals being exposed and losing their protective function. If the operator accidentally touches a live terminal, it can easily cause an electric shock accident. When using a flip-top structure, the cover is connected by a hinge. After long-term opening and closing, the hinge is prone to breakage. Moreover, the flip-top requires additional space when opened. In scenarios where circuit breakers are densely arranged in a distribution box, adjacent circuit breakers will obstruct the opening and closing of the flip-top, making operation extremely inconvenient. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a miniature circuit breaker with a combined wiring hole protective cover, which solves the problems of insufficient protection of the wiring slot, inconvenient operation, and easy displacement and detachment of the cover in traditional miniature circuit breakers.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a miniature circuit breaker with a combined wiring hole protective cover, comprising: a body, a wiring groove, the wiring groove being located at the top of the body, a protective device slidably connected to the top of the body, the protective device sealing the input end of the wiring via sliding, the protective device comprising a cover, the number of which is two, a rubber cover plate fixedly connected to the inner wall of the cover, the rubber cover plate having elastic sealing properties, and being able to fit tightly against the input end of the wiring groove to form a physical isolation barrier, preventing dust, moisture, insects and other foreign objects from entering the wiring terminal cavity, avoiding the increased contact resistance and terminal overheating caused by foreign object accumulation in traditional circuit breakers, or leakage faults caused by moisture intrusion. After the double covers completely cover the wiring groove, direct contact between the live terminals and external metal tools or human bodies can be isolated, eliminating the risk of single-phase electric shock or phase-to-phase short circuit from the source.

[0008] Preferably, the outer wall of the cover is slidably connected to the inner wall of the container, the bottom end of the cover and the rubber cover plate is in contact with the input end of the wiring groove, and the outer wall of the rubber cover plate is arranged in a circumferential array along the central axis of the cover.

[0009] Preferably, the side wall of the cover is fixedly connected with an elastic buckle, and the top of the elastic buckle is fixedly connected with an anti-slip strip. The anti-slip strip increases the friction between the hand and the cover, which can prevent the operator from slipping when pushing the cover with oily hands or wearing gloves. This can not only accurately control the sliding stroke of the cover, but also reduce the risk of tools accidentally touching the terminals due to slipping.

[0010] Preferably, the outer wall of the elastic buckle is slidably connected to the inner wall of the device body.

[0011] Preferably, the end of the cover away from the elastic buckle is symmetrically and fixedly connected with a limit buckle, and the outer wall of the limit buckle is slidably connected with a limit post. The elastic buckle has elastic reset characteristics. When the cover slides to the closed position, the elastic buckle can form an elastic lock with the inner wall of the device, so as to prevent the cover from shifting or loosening when the circuit breaker is transported, vibrated or accidentally touched, and ensure that the protective device always fits the wiring groove, and does not fail due to structural loosening, thus ensuring the stability of protection during long-term use.

[0012] Preferably, the outer wall of the limiting post is fixedly connected to the inner wall of the device body.

[0013] Beneficial effects

[0014] This utility model provides a miniature circuit breaker with a combined wiring hole protective cover. It has the following advantages:

[0015] This utility model, with its double-cover design and rubber cover plate, can tightly seal the wiring groove, preventing foreign objects from entering the terminal area and avoiding malfunctions caused by foreign objects. It also isolates the live terminals from external contact, reducing the risk of electric shock. The cover and the device body are slidably connected, so opening and closing do not require disassembly, making operation effortless. During maintenance, individual covers can be moved separately, reducing the possibility of overall protection failure. The elastic buckle on the side wall of the cover can fix the position of the cover and prevent displacement during use. The anti-slip strip at the top increases the friction during operation, preventing slippage and accidental contact during operation. The limiting structure at the end of the cover can precisely limit the sliding stroke, preventing the cover from falling off and avoiding collision between the cover and internal components of the device body, reducing component wear and extending the overall service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the cover of this utility model.

[0019] In the diagram: 1. Body; 2. Protective device; 20. Cover; 21. Rubber cover; 22. Elastic buckle; 23. Anti-slip strip; 24. Limit buckle; 25. Limit post; 3. Wiring groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figures 1-3 This utility model provides a technical solution: a miniature circuit breaker with a combined wiring hole protective cover, comprising:

[0023] The device body 1 has a wiring groove 3 located at the top of the device body 1. A protective device 2 is slidably connected to the top of the device body 1. The protective device 2 seals the input end of the wiring body by sliding. The wiring groove 3 at the top of the device body 1 is protected by the protective device 2 and can also be quickly repaired.

[0024] The protective device 2 includes two covers 20. A rubber cover plate 21 is fixedly connected to the inner wall of the cover 20. The outer wall of the cover 20 is slidably connected to the inner wall of the device 1. The bottom ends of the cover 20 and the rubber cover plate 21 are in contact with the input end of the wiring groove 3. The outer wall of the rubber cover plate 21 is arranged in a circumferential array along the central axis of the cover 20. When wiring is required, the operator can push the spring buckle 22 on the side wall of the cover 20 of the protective device 2 along the top of the device 1. The cover 20 and the device 1 adopt a sliding connection design, which can be opened and closed without disassembly. At the same time, the anti-slip strip 23 on the top of the side wall structure of the cover 20 can increase the friction between the hand and the cover 20 to avoid slipping during operation. One set of covers 20 can be pushed alone without opening the entire protective structure, reducing the exposed area of ​​the wiring terminal. The cover 20 completely covers the wiring groove 3, isolating the live terminals from direct contact with external metal tools and the human body, avoiding the risk of electric shock.

[0025] The side wall of the cover 20 is fixedly connected with an elastic buckle 22, and the top of the elastic buckle 22 is fixedly connected with an anti-slip strip 23. The outer wall of the elastic buckle 22 is slidably connected to the inner wall of the device 1. After the wiring is completed, the cover 20 is pushed to reset, so that the rubber cover plate 21 of the cover 20 and the inner wall are tightly fitted with the input end of the wiring groove 3. The rubber cover plate 21 fills the gap with its elastic properties, forming a sealing barrier. The elastic structure of the side wall of the cover 20 slides and adapts to the inner wall of the device 1 and forms an elastic clamp, preventing the cover 20 from shifting in subsequent use, completing the initial protection of the wiring terminal. The rubber cover plate 21 blocks dust, water vapor and other foreign objects from entering the wiring terminal area, preventing the terminal from overheating or leakage caused by the accumulation of foreign objects.

[0026] The end of the cover 20 away from the elastic buckle 22 is symmetrically and fixedly connected to the limiting buckle 24. The outer wall of the limiting buckle 24 is slidably connected to the limiting post 25. The outer wall of the limiting post 25 is fixedly connected to the inner wall of the body 1. The limiting buckle 24 at the end of the cover 20 away from the elastic structure slides and engages with the limiting post 25 fixed to the body 1, precisely limiting the sliding stroke of the cover 20, preventing the cover 20 from sliding off excessively or colliding with internal components, and ensuring the stability of the protective structure.

[0027] During use, the wiring slot 3 at the top of the device 1 is protected by the protective device 2, and can also be quickly repaired.

[0028] When wiring is required, the operator can push the spring buckle 22 on the side wall of the cover 20 of the protective device 2 along the top of the device 1. The cover 20 and the device 1 adopt a sliding connection design, which can be opened and closed without disassembly. At the same time, the anti-slip strip 23 on the top of the side wall structure of the cover 20 can increase the friction between the hand and the cover 20, and prevent slipping during operation. One set of covers 20 can be pushed individually without opening the entire protective structure, reducing the exposed area of ​​the wiring terminal. The cover 20 completely covers the wiring groove 3, isolating the live terminals from direct contact with external metal tools and human body, avoiding the risk of electric shock.

[0029] After wiring is completed, push the cover 20 to reset, so that the cover 20 and the rubber cover plate 21 on the inner wall are tightly fitted with the input end of the wiring slot 3. The rubber cover plate 21 fills the gap with its elastic properties, forming a sealing barrier. The elastic structure of the side wall of the cover 20 slides and adapts to the inner wall of the device 1 and forms an elastic clamp, preventing the cover 20 from shifting in subsequent use, completing the initial protection of the wiring terminal. The rubber cover plate 21 blocks dust, water vapor and other foreign objects from entering the wiring terminal area, preventing the terminal from overheating or leakage caused by the accumulation of foreign objects.

[0030] The limiting buckle 24 at the end of the cover 20 away from the elastic structure slides in conjunction with the limiting post 25 fixed to the body 1, precisely limiting the sliding stroke of the cover 20, preventing the cover 20 from sliding off excessively or colliding with internal components, and ensuring the stability of the protective structure.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A miniature circuit breaker with a combined wiring hole protective cover, comprising: The device body (1) and the wiring slot (3) are characterized by: The wiring groove (3) is opened at the top of the device body (1), and a protective device (2) is slidably connected to the top of the device body (1). The protective device (2) seals the input end of the wiring body by sliding. The protective device (2) includes a cover (20), and there are two covers (20). A rubber cover plate (21) is fixedly connected to the inner wall of the cover (20).

2. The miniature circuit breaker with a combined wiring hole protective cover according to claim 1, characterized in that: The outer wall of the cover (20) is slidably connected to the inner wall of the body (1). The bottom ends of the cover (20) and the rubber cover plate (21) are in contact with the input end of the wiring groove (3). The outer wall of the rubber cover plate (21) is arranged in a circular array along the central axis of the cover (20).

3. A miniature circuit breaker with a combined wiring hole protective cover according to claim 1, characterized in that: The side wall of the cover (20) is fixedly connected with an elastic buckle (22), and the top of the elastic buckle (22) is fixedly connected with an anti-slip strip (23).

4. A miniature circuit breaker with a combined wiring hole protective cover according to claim 3, characterized in that: The outer wall of the elastic buckle (22) is slidably connected to the inner wall of the body (1).

5. A miniature circuit breaker with a combined wiring hole protective cover according to claim 1, characterized in that: The end of the cover (20) away from the elastic buckle (22) is symmetrically fixedly connected to a limit buckle (24), and the outer wall of the limit buckle (24) is slidably connected to a limit post (25).

6. A miniature circuit breaker with a combined wiring hole protective cover according to claim 5, characterized in that: The outer wall of the limiting post (25) is fixedly connected to the inner wall of the body (1).

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